Fosroc Renderoc Rapid 20kg

Renderoc Rapid is a fast-setting, high-performance reinstatement mortar designed for urgent concrete repairs where rapid return to service is critical. Supplied as a single-component, pre-blended dry powder, it requires only the addition of clean water on site to produce a high-strength, shrinkage-compensated mortar with excellent handling characteristics and self-compacting properties.

Formulated with a blend of cements, graded aggregates, special fillers, and chemical additives, Renderoc Rapid ensures low water demand, fast strength gain, and long-term durability—making it ideal for both structural and surface-level concrete repairs.

Key Features:

• Rapid strength gain – trafficable within 1 to 2 hours

• High early and ultimate strength – suitable for structural reinstatement

• Excellent abrasion and weather resistance – ideal for exposed areas

• Single-component – eliminates site batching errors

• Excellent bond to concrete substrates

• Shrinkage compensated – ensures dimensional stability

• Chloride-free – safe for use around steel reinforcement

• Thermal compatibility with concrete and water-repellent properties

Typical Uses:

• Emergency reinstatement of pavements, ramps, and hardstands

• Repair of industrial floors and loading docks

• Concrete repairs requiring early trafficking or reopening

• Road, bridge, and airport slab patching

Packaging:
Available in 20kg bags

Coverage:
Approximately 10–11 litres per 20kg bag (depending on substrate and compaction)

Compressive Strength:

• Accepts light traffic in 1–2 hours

• Typically achieves >20 MPa at 2 hours and >50 MPa at 28 days